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feat: make canvas refresh more efficient

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This commit is contained in:
Evan Carroll 2026-01-15 15:27:58 -06:00
parent b430c80000
commit 8447fdef5d
5 changed files with 507 additions and 408 deletions
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21
crates/chattyness-user-ui/src/components/settings.rs
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@ -63,7 +63,7 @@ pub struct ViewerSettings {
pub zoom_level: f64,
/// When true, props use reference scaling based on 1920x1080.
/// Only applicable when `panning_enabled` is false.
/// Applies in both fit mode and pan mode.
pub enlarge_props: bool,
/// Saved horizontal scroll position for pan mode.
@ -78,7 +78,7 @@ impl Default for ViewerSettings {
Self {
panning_enabled: false,
zoom_level: 1.0,
enlarge_props: false,
enlarge_props: true,
scroll_x: 0.0,
scroll_y: 0.0,
}
@ -132,18 +132,23 @@ impl ViewerSettings {
/// Calculate the effective prop size based on current settings.
///
/// In pan mode, returns base size * zoom level.
/// In pan mode without enlarge, returns base size * zoom level.
/// In pan mode with enlarge, returns base size * reference_scale * zoom level.
/// In fit mode with enlarge_props, returns size adjusted for reference resolution.
/// Otherwise returns base size (caller should multiply by canvas scale).
pub fn calculate_prop_size(&self, scene_width: f64, scene_height: f64) -> f64 {
// Reference scale factor for "enlarge props" mode
let ref_scale = (scene_width / REFERENCE_WIDTH).max(scene_height / REFERENCE_HEIGHT);
if self.panning_enabled {
// Pan mode: base size * zoom
BASE_PROP_SIZE * self.zoom_level
if self.enlarge_props {
BASE_PROP_SIZE * ref_scale * self.zoom_level
} else {
BASE_PROP_SIZE * self.zoom_level
}
} else if self.enlarge_props {
// Reference scaling: ensure minimum size based on 1920x1080
let scale_w = scene_width / REFERENCE_WIDTH;
let scale_h = scene_height / REFERENCE_HEIGHT;
BASE_PROP_SIZE * scale_w.max(scale_h)
BASE_PROP_SIZE * ref_scale
} else {
// Default: base size (will be scaled by canvas scale factor)
BASE_PROP_SIZE